Just a follow-up to my original post... Checking that little box under the login prompt ("Log me on automatically each visit") seems to have alleviated my constant log-off problem. After checking this box, I was able to stay on long enough to shop, buy and download my purchases. As for my computer settings, I'm currently using the library computer lab across from my apartment...it's a Windows XP network, but I don't tinker with any of the browser settings. PoserPros is the only site I've encountered troubles with, so they should get with standard network/browser specs.