HI
Something is caching your browsing ... (you say you cleared cache - rebooted?)
1. Try another browser (if you use IE try Firefox, etc)
2. Make sure you reboot your PC regularly -- at least once every couple of days.
If you use your PC a lot -- believe me at the end of a day your little machine will stink digitally. Give it a shower -- reboot -- & every now and then give it a nice pamper with
CCleaner. Clear out all those digital nasal hairs, trim long toe nails, etc ..
I have never known it to be any problem if people do the usual PC stuff like rebooting every day, etc ..
Simplicity is the ultimate sophistication. – Leonardo da Vinci