I an error like literaly every time I donwload an app... Error package file is invalid. I have to redownload 2-3 times before it will install if it will install... I have wiped my market data and cache and that didn't help, I've also wiped dalvik cache to no avail... One app that won't install that keeps getting the error is world of goo demo. Which is 27.94MB. Anyone else know what I could do?