AutoCAD 2010/2011/2012 DWG Format

[#1]

It must be Raster Image Day on the discussion groups...

ACAD Architecture installed as 32-bit on Win 7 64 bit machines w 12 gig ram. My users are using that g.d. CAP studio program, hence the 32 bit install.  SP1 is installed as are hotfixes for Ribbon and Dimension issues. 

Here's what's happening: most of the time we have no issues with raster images attached to the files.  However, every once and a while one of the images decides to not show up.  In XREF manager, everythings fine - the paths to raster images are correct (shared network path).  The files are loaded, the insertion layers are on. You can close out of AutoCAD and come back in - sometimes the image pops back in.

Even though these are plot settings, I have RASTERPERCENT set to 80, and Raster Threshold set to 120 (although the size of most of these images is around 100k)

Anyone know if this is a known issue with 32 bit installs of ACAD?  

THANKS!

LOU

[#2]

Did you eliminate the more common errors?

- The image resides on a layer that is turned off/frozen.

- The image is off: turn on the imageframe, select it and turn SHOW IMAGE back on using PROPERTIES.

[#3]

Thanks for the input.

After doing some testing, I've concluded that the problem is the "unnatural" install of Autocad as a 32-bit app on a 64 bit system.