[maemo-developers] Bad Drawable when running hellogl_es2 example

[From: Charles Han]

Hi all,

I am having issue when running the example hellogl_es2 from QT. The 
program segment fault on theN900 and showing this error message:
X Error: BadDrawable (invalid Pixmap or Window Parameter) 9
Extension: 134 (unknown extension)
Minor opcode: 4 (unknow request)
Resource id: 0x3e00009

It's an opengl es 2 example. any help?

Thanks

Charles