I had the same problem and found it was because I had installed it to a Programs folder on a non-"C:" partition.When I ran the install with...
LOL ...yeah I suppose it would but used ones work just fine :P Also the foam ones are the best as they don't inhibit air-flow as much and stay...
I have found that a dryer fabric sotner sheet cut to size works very well . When dirty just toss and replace.
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