If Adobe Dreamweaver CS3 is crashing for an unknown reason, it might be worth checking your CSS file sizes. Over the last 4 days I have been pulling my hair out over why Dreamweaver CS3 suddenly crashed, and stopped working, period. Here’s what happened, the problem and the solution:
What happened:
I was working away for a client and between my regular ’saving and testing’ method of working, I somehow managed to break Dreamweaver. I tried many things to mend a broken DW: Restart the computer, clear the application cache, check your files are not corrupt, reinstall the application, check the registry, run an anti-virus scan, restart your computer again… but none of them worked. It was only until I came across a post by The Fuel Agency which provided the solution I was after.
The problem:
Apparently there is a CSS file size bug in DW CS3 where a CSS file size of, or multiples of, 8192k will cause DW to crash.
The solution:
Open your CSS file in notepad and add/remove a few extra lines - all you need to do is change the file size slightly. And voila - DW CS3 should be back up and working as normal! Simple no?
This bug was found on an up-to-date version of Adobe Dreamweaver CS3 for PC. It’s not known if this bug also occurs on Apple machines. If you do know please let me know in the comments.
Tags: bugs, CS3, Dreamweaver

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3 months ago
Unbelievable. I entered some code into a CSS file, saved it and Dreamweaver just stopped working. It wouldn’t load. I tried to uninstall/reinstall. Didn’t work. I tried to uninstall all of Creative Suite CS3, do a Level 2 CS3 Clean Up, reinstall the entire suite. Still didn’t work. Read your comments and thought there is no way this could actually work. I added two lines of code into my CSS file and voila, it works fine now.
Crazy, crazy, crazy.
3 months ago
Very happy to hear this post helped you Lynnette! It is still the most bizarre bug I have ever come across.
3 months ago
This one takes the cake. I’m glad I didn’t start uninstalling/reinstalling. What a nightmare that is. Works now. Just deleted a few lines of code and BINGO!
2 months, 1 week ago
this fix worked for me!
absolutely crazy!
1 month, 3 weeks ago
WOW. A Big Thank you. I would never have believed it, and I was just about to start the whole uninstall/reinstall cycle.