You should check to see which are supported but sometimes a browser update will do this until the site catches up with the newer version.
On Windows 7, product name HP p6540f, I get the following message each time I go on the net "Sorry you are trying to use Google calendar with a browser that isn't currently supported. Press OK to view a read only version of your calendar. Press cancel to continue loading Google calendar and hope for the best. OK Cancel" Pressing Cancel goes direct to the calendar, how do I cancel this annoying pop up that has poped up in the last 2 weeks but never before. Computer is 1 1/2 yrs. old.

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