Yeah, the new behavior with guides can be a pain. I was used to deleting them by dragging them off to the side or top into the ruler areas. But I also just click on them and hit the delete key as well.
I'm not sure if the behavior has anything to do with the "dynamic guides" feature of CorelDRAW 12. The extra snapping capability on the guides (and many parts of other objects) seems to add more than is taken away from the way guides worked in previous versions.
The things that burn me up about CorelDRAW 12 are other nagging problems, like them eliminating the one-shot zoom tool. I was very accustomed to using that in CorelDRAW 9. I don't like how the quality of the contour and convert outline to object functions have dropped in terms of quality. They really stink compared to similar effects in Adobe Illustrator and Macromedia Freehand.
The biggest PITA to me regarding CorelDRAW 12 is its very unstable behavior. I've tried it on two different desktop machines and my notebook computer and have seen it crash in really crazy ways. On my desktop machine at work (a new Dell Dimenion 9100 with a Pentium D 840, 2GB of RAM, 256MB GeForce 6800, etc.) CorelDRAW 12 can be made to crash simply by nudging objects around with the arrow keys on the keyboard.
A CorelDRAW 12 crash is especially a big pain because that Corel A.R.M. wizard pops up endlessly reminding you the application has become unstable -even after you have shut down the application! It takes a full reboot to get rid of the wizard message. Arrgh!
Falling back on Corel 9 doesn't make things much better. I can't install either of the service packs for that release on my XP Pro laptop or new XP Pro work computer. On the new dual core machine, Corel 9 will sometime lock up when attempting to open or import a new file. And then the application will sometimes not even run right after such a crash until it is launched using the F8 key to restore the default installation settings.
I formerly used CorelDRAW for most of my sign design work, only bringing artwork into Flexi when it was ready to cut or rout. Illustrator would only get launched when I needed to get Corel-generated paths into Photoshop (using Illustrator as a middle man app in the process). The bugs from CorelDRAW, and huge improvements in Adobe's applications, have me using IllustratorCS2 much more often. It's only going to take a couple more improvements within the program, or a third party plug-in or two, for me to drop CorelDRAW entirely.
The folks at Corel had better get on the ball about these bug problems and quality issues with their effects or Adobe will make CorelDRAW disappear. Painter will wind up being Corel's tent pole app.