MiniDisplay/ThunderBolt to VGA Adapter Often Failed to Connect

[t3k]

Hi, is there anybody has got experience about minidisplay / thunderbolt to VGA adapter that 100% works when plugged into a projector?

Because I already bought twice, and both often fail when I'm use it for presentation. (It could only connect several times)
The conditions is the black screen appear once on mac but on the projector screen is still blue screen with the prompt "No input detected".
I've tried with several other Macbook but the result is same.
Whereas the same projector and the same vga cable plugged into a Windows laptop it works smoothly without any problems.

It'd be difficult if for each presentation I should be moved to a Windows laptop.

Thanks in advance all

 

[ctyrider]

Could it be a sign that your company should invest invest in some projectors made in this century? VGA being 30 year old technology and all that..

 

[t3k]

Could it be a sign that your company should invest invest in some projectors made in this century? VGA being 30 year old technology and all that..

The problem is I use it for presentation on client office, and usually the projector's system is fixed so I couldn't use another projector.