I never used Sygic software but map resolution is not necessary the same as Menu resolution. In Primo they are the same but with Sygic it could be totally different. Sorry to be so harsh but that is why you have to know what you are doing and I suspect that is your problem. I have a cheap 2Din Chinese unit and never had any problems installing any software on it. You just cannot download anything from the Internet (assuming the copy is even good) without tailoring it for your specific unit and expect it to always work perfectly. Assuming you have all the necessary and correct files in the proper location for your specific hardware, you still must configure properly your sys.txt file.