Hallo, As an alternative-back-up to my Ayecka SR1 I wonder if the TBS 5927 would do ? My OS is Windows 7. Please advise your experience - thank you very much in advance. I tried before the TBS-5925 which I had to return to the seller as I was not satisfied - probably it had a heat problem - as the 5927 now has its own inbuilt ventilator has this heat problem vanished for good ? I look forward to your news. Regards, Roland