No discussions of pre-release software. If you have 10.4.4 and are posting about it on here, you either are breaking NDA or got it illegally. In the first case, we don't want to help you break an NDA. In the second case, you probably installed a trojan horse. Since you got it illegally, we would prefer you not discuss it here.
If you are actually running 10.4.3 and haven't been installing nefarious software, then please post another thread with more info.
ps. Apple support wouldn't be able to help you even if they tried.