Bridge CS5 using lots of memory and give out-of-memory errors

Hi,

I'm using Bridge CS5 with the latest updates on Vista 32bit 4GB RAM on quad core machine.

Bridge memory seems to keep raising during the usage, browsing a new folder seems to raise it a bit and previewing files raise it alot, mainly when I preview a large 18MP files.  (Bridge seems to not freeing the memory and re-use it...  leaking(?) )

Very quickly the Bridge RAM usage is reaching about 1GB and at this point Bridge gives warnings that it can't generate 100% previews.

When I restart Bridge, it works fine for a while until the memory start raising again.

(It takes about 5-6 100% previews of 18MP files to reach that RAM usage - so the problem occurs rather quickly)

I've tried limiting the cache in the preferences and disable caching of 100% previews -- didn't help.

Any ideas?

Thanks.