General ⇒ No new pdf creation after updates.

[peterb]

Hello all,
I recently updated miktex and texmaker to the latest releases. Since then all I get from texmaker is the .bak file which shows my latest texts. But no updated pdf file is created. There are no error messages in the texmaker logfile. It just ends with ''created xxx.pdf'' (which is the xxx.pdf.bak file).
I deleted miktex and texmaker several times and installed them again in the correct order (first miktex and then texmaker). No improvement though.
Before I updated miktex and texmaker all worked smoothly, no problems at all.
I hope someoone can help.
Thanks in advance, Peter