Is there a way to use 2 external monitors with the MacBook Pro in closed clamshell mode?

My internal display on my MBP is having issues and occasionally displays white lines all over the screen. The current external monitor displays properly. Is there a way to use two extrernal monitors intead of one external + the internal display?

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Model Name: MacBook Pro (17-inch, Early 2009)

Model Identifier: MacBookPro5,2

Processor Name: Intel Core 2 Duo

Processor Speed: 2.93 GHz

Number of Processors: 1

Total Number of Cores: 2

L2 Cache: 6 MB

Memory: 8 GB

Bus Speed: 1.07 GHz

NVIDIA GeForce 9400M:

Chipset Model: NVIDIA GeForce 9400M

Type: GPU

Bus: PCI

VRAM (Total): 256 MB

Vendor: NVIDIA (0x10de)

Device ID: 0x0863

Revision ID: 0x00b1

ROM Revision: 3436

gMux Version: 1.7.10

NVIDIA GeForce 9600M GT:

Chipset Model: NVIDIA GeForce 9600M GT

Type: GPU

Bus: PCIe

PCIe Lane Width: x16

VRAM (Total): 512 MB

Vendor: NVIDIA (0x10de)

Device ID: 0x0647

Revision ID: 0x00a1

ROM Revision: 3436

gMux Version: 1.7.10

Displays:

Color LCD:

Display Type: LCD

Resolution: 1920 x 1200

Pixel Depth: 32-Bit Color (ARGB8888)

Main Display: Yes

Mirror: Off

Online: Yes

Built-In: Yes

Cinema HD:

Display Type: LCD

Resolution: 1920 x 1200

Pixel Depth: 32-Bit Color (ARGB8888)

Display Serial Number: *************

Mirror: Off

Online: Yes

Rotation: Supported