Call of Duty: Black Ops has had a huge launch and met with critical acclaim, but all is not well with the game. It turns out that players are seeing lag and some other serious problems, including very high CPU loads which prevent the game from playing properly on PCs.From the start I’ll say this: I put in about two hours on the PC version last night and had no problems. The single player worked great and while the multiplayer had some lag and rather high pings, it wasn’t enough to prevent me from playing. Reports around the web are prevalent enough that it’s clear problems exist, even if I can’t personally speak to them.AdChoices广告Kotaku discovered a forum response from a Treyarch employee staying that “the PC server browser was crushing the back-end”. We also have confirmation that the issue(s) is/are known and they are being addressed.So if you are having problems, don’t worry, you’re not the only one.We’re seeing performance fixes pop up around the web but if there are problems with the multiplayer backend those won’t help. At the very least maybe these will help people get through the single player campaign. Some of the fixes seem a bit dubious though, so read up before you start hacking away.The Steam forums are generally the best place to turn when this happens, and this time is no different. There are a number of threads up on the problems, with the summary being that there are a number of glitches with the PC version and people aren’t too happy. That said, this is a huge release so even if bugs are only affecting a small percentage of users the outcry will seem widespread.As it happens so often, users might just have to wait a few days for a patch to be released and things to finally work properly. It might not seem like a big deal to you, but if you took the time to pre-order and then pre-load what will probably be the biggest FPS game of the year, it could come as a serious disappointment.