I don't think it was the font file. I already tried a new install after a reboot. The font file is no more locked after the reboot .
The CD version is 1.66. This version is working. After ending it, the font file is still unlocked. I just tried to install 1.87, without success. Installation ends ok, but when I run Blitz, again no IDE (at least not visible, tho it's listed in the task manager - seems to hang). After this hanging the font file is locked. I guess it has something to do with msie that is the frame for the IDE. I already tried its repair function without success. now I'll try to "uninstall" msie, aka downgrade to version 4.
The CD version is 1.66. This version is working. After ending it, the font file is still unlocked. I just tried to install 1.87, without success. Installation ends ok, but when I run Blitz, again no IDE (at least not visible, tho it's listed in the task manager - seems to hang). After this hanging the font file is locked. I guess it has something to do with msie that is the frame for the IDE. I already tried its repair function without success. now I'll try to "uninstall" msie, aka downgrade to version 4.