this looks like common problem but there is one thing and I don't understand where could be problem.
PPM 7.5 SP6
User is not able to save or submit his timesheets from several weeks ago to present and also future time sheets seems to be affected. After click on Save or Submit button he is getting this message:
"Invalid Actual Effort
Actual effort has an invalid value, must be a numeric value"
So I have tried to save his time sheet under my admin account. No errors. Then I did it under his account. Again no errors, eveything works fine for me. So I don't know where is the problem. He has still that issue so it lookks like the cause is in his computer... Is this possible?
But user has this problem also with blank time sheet. So he creates new time sheet, and click save for example. With no values entered and he gets this error. And for me it works good so this is strange.