Hi Dave and Pete,
Had this exact same problem tonight when re-installing PFE on a new copy of Windows 7 64bit but thankfully have resolved it. Kept trying to click on the PFE icon but nothing would happen, the system process had started but no GUI had loaded. When I tried to double click on the icon to restart it, you guessed it... "PFE is already running on this computer". Thought I would share what worked for me.
Here is what i did.
Installed from a box copy which gave me a fresh copy of ver 1.84. It Did an automatic update which then gave me Ver 1.94. Had to manually press the 'check for update' button. This is where the problem occurred after this update the above happened. I could start ProFlight no problem but the emulator's graphic interface wouldn't start. I tried numerous re-installs and updates but nothing would work after ver 1.94. I then noticed that the file version on the PFE icon after I had manually pressed the update button was only 2.0.0.0. So I downloaded Dave's accumulative update located in PFE manual install instructions at the top of the support forum. Followed the instructions... (I noticed half way through it wanted me to reboot my system? - but pressed cancel) It finished the install of 2.11.1. I did a re-boot and now it all works great again. Seriously, couldn't do without PFE!!!
The 'check for update' seems to do it in stages is that correct Dave? I assume that by being version 2.0.0.0 that it hadn't installed the Vista 64bit fix that would be the same for Win 7 64bit? That's my rather large guess.
I hope you get it working Pete.
Cheers
Rhydian
P.S @ Dave, any news on the voice script for PFE? So I can make my own voiceset. Cheers.
Thanks for that update, I actually have not fiddled around with it for a few days since I was busy with other stuff. I will give this a shot tonight and see if that solves the problem, but since you are describing the exact same issue, I feel confident it will work.
Thanks, Pete