Hi,
Have you tried the following steps:
When you are creating a Infopath form make sure you tick the Enable browser enabled features only at the time when you are creating a new infopath form. Make sure that your form is browser enabled (Tools -> Form Options -> Compatibility) in InfoPath. The "Design a form that can be opened in the browser" is checked and selected. After designing your form publish it in your Sharepoint Forms Library.
After that follow this step:
- Go to the Form Library to which you published the InfoPath form template.
- Click Settings on the Form Library menu bar and choose Form Library Settings from the drop-down menu.
- On the Customize <Form Library Name> page under the General Settings category, click Advanced settings .
- On the Form Library Advanced Settings: <Form Library Name> page under the Browser-enabled Documents category, choose Display as a Web page .
from the Central Administration also make sure to enable this feature.
To enable this setting:
- Open SharePoint Central Administration .
- Click the Application Management tab.
- On the Application Management page under the InfoPath Forms Services category, click Configure InfoPath Forms Services .
- On the Configure InfoPath Forms Services page under the User Browser-enabled Form Templates category, check Render form templates that are browser-enabled by users .
Hope that helps solve your problem,