I believe you're referring to the Huawei Ascend M860... Which I have and there is a forum dedicated to it here on AF, with lots of intelligent people who would love to help. But a little more info would help...
What OS are you on?
Are you rooted?
Have you recently installed anything new around the time this problem started?
Etc., etc...
Worst case scenario, you can revert to stock and if the problem persists, take it to the Metro store and have them replace it.