On Vista X64 with 1920 * 1200 single monitor, the docking indicators disappear about 50% of time. Every time when I try to dock, whether or not I have the docking indicator depends on my luck and act of god.
I'm using an Open Source solution DockPanel Suite right now. It has MIT license so there's no restriction on commercial use. It has problems, too. But at least I can see the docking indicators unless I have dual monitor sometimes I can only see the indicators on one of them.
As end user I just want a working commodity that I can use. Without docking library I will still pay for my SyncFusion license because I still need the GridControl. But I'm very objective and I won't take it for granted that the paid product and service are always better than Open Source solutions. I will choice individual components that best suite my business, such as SyncFusion docking v.s. DockPanel, or SyncFusion chart v.s. ZedGraph.
Consistently making improvement is essential for your business. SyncFusion so far has done a very good job listening to customers. The reason why I'm willing to raise issues is because that I believe it's for the best interest of both parties.
I hope the programmers in your company are given 64 bit machines with Vista for development. If it works on X64 it will work on X86 but not vice versa. I can't see how the development is going to work out on 32 bit machines. If you guys are still using 32 bit machines for development I would say that's a management issue.
Thank you for posting your query to us.
I am afraid that I was not able to reproduce the issue which you have mentioned in the previous update.[Vista/64 bit].
I have created a simple sample to test this issue and its is available in the following link.http://websamples.syncfusion.com/samples/Tools.Windows/F63867/main.htm
Please have a look at the above sample and if still the issue exists, could you please try reproducing it in the above sample or send us the reproducing steps that we could sort out the cause of the issue and provide you a solution?