Freezing windows from Mylot.com

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Is anyone else having this problem ? been going on for two days with me,i would be right in middle of typing and my page would freeze and couldn't get out of. I had to control alt, and delete to finally get out, and by then all i typed was gone,this really bites,what is going on? I have lost some good responses due to this, and good discussions. Needs to be fixed. Lish in ky