Under some conditions TestPartner text capture may not work against IE9.
A checklist below may help to resolve such issues.
1. In IE9, GPU rendering may be enabled by default (IE > Tools menu > Internet Options > Advanced tab > Accelerated graphics). Try changing this setting to software mode and restart the browser.
2. When you use virtual machine software that may have Direct3D enabled in the virtual machine settings by default. Try disabling the “Accelerate 3D Graphics” or equivalent option in the virtual machine settings.