I get this exact same issue and it's incredibly frustrating, to the point that I may have to switch IDE's.
To check, Umuayo are you editing files over a network?
This is how I work - projects held on my local Windows Server 2003 development server (for working on multiple work stations and on the same platform as deployment).
I suspect that CFBuilder has issues with network editing as I've noticed problems with this since version 1.
Is there any fix to this? I've turned off just about every option that has been shown to improve performance from various guides.
Would be really good to resolve this as I don't really want to switch to a different IDE.
I'm running the latest 2.0.1 with the Java 7 jvm.dll (though had the same issue with the stock JVM and Java 6).
Yes, we are editing files over the network (Team Foundation Server) with a TFS plugin.
Its a shame CF Builder turned out to be money wasted as there is no update to FIX the software for all these issues.
We have over 20 licenses on site and as I reply to this, we have started looking for a replacement editor.
Shame on YOU ADOBE.
Very interesting Umuayo.
Hopefully that will fix it, though I wonder which plugin in particular is causing the network editing issues.
I'd think we'd need some of the Aptana ones for HTML / CSS editing, though most can be disabled I bet.
Going to try myself - thanks for posting.
Unfortunately as of today 06/13/2013, CF Builder 2 have started hanging again.
So my previous post about unchecking plugins FIX is no longer correct.