I was having some issues with CS4 programs not being able to use my cursor to scale or move objects. I narrowed it down to it only happening when I touched the keyboard while using Photoshop or After Effects. Once I hit a key, I could move the cursor around, but clicking on something and trying to drag it around didn’t work. So, after rebooting, I started AE CS4 before starting anything else. Then I started my Synergy program and voila! The problem happened. So, just closing Synergy while using CS4 programs seems to work.
Can’t drag cursor can’t scale can’t resize can’t transform… Fixed!