Hi, thanks for taking time.
Under Windows 7 I have been using Mnemosyne 2.7.3 since it was published with no issues at all. So it would be quite strange that Win7 is the main culprit , though of course one cannot exclude it.
Today I noticed two similar errors, please see below. I also noticed that the issue occurs also when trying to export cards - after clicking the last "OK" before exporting; and the cards are not exported.
Today I tried uninstalling and installing the Mnemosyne again - with no effect. Would you have any other suggestions please? The text-to-speech is a very important function to me, used on a daily basis...