Lightroom 2.2 continually crashes

Is anyone else experiencing LR continually crashing when using the the brush. In my case I'm increasing exposure in a background to make it more white.
I can repeat this problem continually.

Did not happen in 2.1 or prior.

There are some posts on other Lightroom forums that indicate there are memory problems. LR isn't freeing memory as it goes, keeps grabbing more and more. Seems to be most of a problem with exporting and the brush. The only remedy at this point seems to be minimizing the application then restoring...yup, seems strange but it works . Look at task manager after you have been in LR for a bit and worked on some files, it will be eating up a ton of memory. After minimizing it will release most of the memory.

Thanks Don.
Found some stuff on another forum as well.
Can frigging believe Adobe would do something like this. Expected more from a company of that caliber.

Are you on a Mac or PC?

I've not had this happen on my Mac. I can get LR to come to a crawl when using a lot of brush though.

There is a memory bug. But also - check and make sure your video card drivers are up to date.

And if using Nvidia, disable the nview desktop application (I think that's the one they say to watch out for.)

From what I understand this bug affect windows & mac; fast machines and slow machines... so if you're thinking throwing more processing cores or more memory is the solution - it's not.

Yeah, you'd expect more from Adobe... but with LR, its starting to feel like par for the course.

Most in the forums I'm reading have less of a problem with 2.1. I downloaded a trial to see what all the hoopla was about, I'm fine until about 3 min of brush, then it takes 5 min to recover.

My thoughts, version 1.0 acceptable, version 2.2 criminal. Seems though for every person with a problem, there is an equal where it is working like a dream.