Firefox 1.5beta1 and acrobat 7.0.1 on 64 bit Gentoo

[dschaefer78]

Hi,

I installed Firefox 1.5beta1 32 bit with acrobat 7.0.1 32 bit plugin and when I try to open a pdf link I get a blank page.
When I launch firefox at the command line like so: /usr/lib32/firefox/firefox it's ok.
and after when I try to open a pdf link : http://www.liberation.fr/img/pdf/UNE.pdf it gives me this error:

Usage: /usr/bin/acroread [options] [list of files]

Options:
--display=<DISPLAY>
This option specifies the host and display to use.
--screen=<SCREEN>
X screen to use. Use this options to override the
screen part of the DISPLAY environment variable.
--sync
Make X calls synchronous. This slows down the program considerably.
-geometry [<width>x<height>][{+|-}<x offset>{+|-}<y offset>]
Size and/or location of the document windows.
Note: this option is position dependent, and can be
specified multiple times. The geometry specified only
affects the list of files following it.
-help
Prints the common command-line options.
-iconic
Launches in an iconic state on the desktop.
-setenv <var>=<value>
Tells the main application to perform the equivalent of
C-shell setenv <var> <value>.
-tempFile
Indicates files listed on the command line are temporary files
and should not be put in the recent file list. The document
title will be the title in the pdf document, instead of the
filename.
-tempFileTitle <title>
Same as -tempFile, except the title is specified.
-toPostScript [options] pdf_file ... [ps_dir]
-toPostScript [options] -pairs pdf_file_1 ps_file_1 ...
-toPostScript [options]
Converts the given pdf_files to PostScript.

In the first form, if the last file specified is a directory,
then all preceding files will be converted to PostScript
and the generated PostScript files will be placed into ps_dir.
If a directory is not specified, then the PostScript files
will be placed in the same directory as the original file.

In the second form, the file list contains pairs, each
consisting of a PDF filename and a corresponding PostScript
filename.

The third form specifies a filter, reading a PDF file from
standard input and writing the PostScript file to standard
output.

Note: When using -toPostScript it must be the first argument
passed in on the command line.

The following are valid options for the conversion of PDF to
PostScript:

-binary - emit binary PostScript where possible
-start <int> - identify the first page in the document to be
converted (default is the first page of the document)
-end <int> - identify the last page in the document to be
converted (default is the last page of the document)
-optimizeForSpeed - emit PostScript such that all fonts are
emitted once at the beginning of the document. This
results in faster transmission times and smaller
PostScript documents but requires more PostScript printer
virtual memory.
-landscape - rotate the pages to print landscape
-reverse - reverse the page order of the output
-odd - emit only odd-numbered pages
-even - emit only even-numbered pages
-commentsOff - don't print comments
-annotsOff - don't print annots
-level2 - emit Level 2 PostScript (level1 is not supported)
-level3 - emit Level 3 PostScript
-printerhalftones - use the printer default halftones.
-saveVM - download fonts as needed to preserve printer memory
-size - Paper size (letter,tabloid,ledger,legal,a3,a4,a5,b4,b5)
-scale <int> - scale the pages according to the scale factor
(default is 100 percent)
-shrink - shrink the pages to fit the page size
-expand - expand the pages to fit the page size
-size <pagesize> - set the page size. The following page sizes
are recognized:
letter - letter size paper
tabloid - tabloid size paper
ledger - ledger size paper
legal - legal size paper
executive - executive size paper
a3 - ISO standard A3 size
a4 - ISO standard A4 size
a5 - ISO standard A5 size
b4 - ISO standard B4 size
b5 - ISO standard B5 size
wxh - custom size paper where w is the integer width
in points and h is the integer height in points
-transQuality level - set the transparency flattening level
Value from 1-5, where 1 means rasterize everything, 5 means
rasterize as little as possible, default is 3.
-openInNewWindow
The application starts normally without checking if it
is already running.
-version
Print version information and quit.
-visual <visual class> [depth=<depth>]
-visual id=<visual id>
-visual best
-visual default
Specifies a visual.

In the first form, the visual class (specified by either
its name or number) with an option depth determine the
visual to use.

In the second form, the visual id is specified. The prefix
0x must be used for hexadecimal numbers.

The third form uses an internal algorithm based on depth
and visual class.

The fourth form simply uses the default visual.

Note that PseudoColor visuals of depth greater than 8,
and DirectColor visuals are not supported.

Does anyone have a solution ?
Thanks a lot,
Dominique