Couldn't find matching GLX visual

[Pyrofan1]

So i've been doing some programming using SDL and now I wanted to start using SDL and OpenGL the problem is that whenever i run the program i get the error "Couldn't find matching GLX visual"
So i ran glxinfo and it told me

name of display: :0.0
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Error: couldn't find RGB GLX visual

visual x bf lv rg d st colorbuffer ax dp st accumbuffer ms cav
id dep cl sp sz l ci b ro r g b a bf th cl r g b a ns b eat
----------------------------------------------------------------------
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
0x21 16 tc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
0x3a 32 tc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None

After googling this problem I found that it usually results from the Load "glx" line being commented in xorg.conf, but i checked my xorg.conf file and that line isn't commented out. After more googling I found that the problem is usually because of nVidia drivers, but i don't have an nVidia card or driver; my graphics "card" is an Intel 945. Are there any other things that could cause this error besides what i have already posted. I'm currently using ubuntu and here is my xorg.conf

Code: Select all

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc105"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
EndSection

Section "InputDevice"
	Identifier	"Synaptics Touchpad"
	Driver		"synaptics"
	Option		"SendCoreEvents"	"true"
	Option		"Device"		"/dev/psaux"
	Option		"Protocol"		"auto-dev"
	Option		"HorizEdgeScroll"	"0"
EndSection

Section "Module"
	Load		"glx"
	Load		"GLcore"
	Load		"v4l"
EndSection

Section "Device"
	Identifier	"Configured Video Device"
EndSection

Section "Monitor"
	Identifier	"Configured Monitor"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Monitor		"Configured Monitor"
	Device		"Configured Video Device"
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen		"Default Screen"
	InputDevice	"Synaptics Touchpad"
EndSection

[Pyrofan1]

EDIT: I fixed the problem; for some reason I had nvidia-glx installed. I removed it and everything works now.