Just received my HD620 converter/switcher so I can use my 27" I Mac as a monitor with my PC and still use my IMac via the command F2 button. The resolution is better than with the Belkin..but not what I expected..especially for the price. Any one have any suggestions, as I wait for Atlona support to return my call. The pictures seem fine..screen saver...it's the wording..Quickbooks, Word, Excel very blurry and fuzzy...Thanks