Insufficient memory to complete operation

[Exuberant_difference1549]

I have completed a graphic and I want to export it to a file format which I can import into a cad program.  The cad program requires jpg, png, or bitmap. and will not accept a pdf.   Of that available, jpg or png are my choice.  The graphic is on a 36"X24" artboard but does not result in a large file.  The ai file is 1.75mb,  When I attempt to do the export I get the isufficient memory message.  I have 4gb of RAM and never more than one half is in use.  My OS is Vista Ultimate X64.  If I save this file as a pdf and try to in turn save the pdf to a jpg, I get a similar message; however, I have converted other pdf files to jpg successfully and these files were 4.4mb. but were not created from .ai.  I do have the quality setting high, but it would seem that 2GB of unused  ram would be adequate to convert a 1.75mb file.  I have tried closing all programs and dumping temp files but the problem remains.

I am not familiar enough with ai or computers to know where to look for some esoteric setting that may be the problem.  Nonetheless I need to be able to do this on a regular basis and therefor need someone's help.

Thanks.

[hollydhath]

For future computer purchase, how much RAM do I really need for large AI files?

[Monika Gause]

Depends on the files. As for rasterization: I haven't tried it on really big files, it might still fail even with large amounts of available RAM.

On top of that you need an Illustrator version that can address that much RAM: CS6 and above.