All was going well with W3TC 0.9.2.8, until I tried turning on Object Cache and Database Cache. Since my VPS has eAccelerator and not APC, I could only select Disk for both of these, so that's what I did.
After a day or so, the wp-admin dashboard would stop responding while I was logged in. Eventually my site would crash and Apace would restart due to out-of-memory. (My VPS has 1024 MB of RAM, and I'm only running one site on it.)
So, I turned Object Cache and Database Cache back off, but the problem continues. I tried deactivating, deleting and reinstalling W3TC, but the problem continues.
Is there something (files, database records) I should delete to clear this issue? Or is there some other setting that could be causing this?