之前开发的vs程序，所有窗体都无法在设计模式下正确显示，一片空白

原来的是vs2005写的，用vs2005再开始时，窗体无法正常显示，一片空白，提示“<html><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8"><title></title><style>.ErrorStyle { font-family: tahoma; font-size: 11 pt; text-align: left}.DetailsStyle { font-family: tahoma; font-size: 10pt; text-align: left;text-indent: 0; word-spacing: 0; line-height: 100%; float: left; margin-top: 0; margin-bottom: 0}.StackStyleVisible { font-family: tahoma; font-size: 10pt; text-align: left; margin-left: 20; text-indent: 0}.StackStyleHidden { display:none; font-family: tahoma; font-size: 10pt; text-align: left; margin-left: 20; text-indent: 0}</style></head><body><DIV class="DetailsStyle" width="100%"><table border="0" width="100%" id="table1" height="100%" cellspacing="0" cellpadding="0"><tr><td height="40" bgcolor="#FF9999" width="8%" style="letter-spacing: 0" align="center"><img border="0" src="C:\Documents and Settings\Administrator\Local Settings\Temp\213162.tmp" width="35" height="35" alt="ErrorImage" ></td><td height="40" bgcolor="#FF9999" width="91%" style="vertical-align: top; letter-spacing: 0" align="left"><b><font size="2" face="Arial" fontsize="70%">鍔犺浇璁捐鍣ㄦ椂閬囧埌涓€涓垨澶氫釜閿欒銆傝繖浜涢敊璇湪涓嬮潰鍒楀嚭銆備竴浜涢敊璇彲閫氳繃閲嶆柊鐢熸垚椤圭洰鏉ヤ慨澶嶏紝鑰屽彟涓€浜涢敊璇垯闇€瑕佹洿鏀逛唬鐮併€?/font><font size="2" face="Arial"></font></b></td></tr><tr><td colspan="2" align="left" valign="top"><DIV id="div1" class="ErrorStyle" width="100%"><span style="font-weight: 600"><br>璺緞鐨勫舰寮忎笉鍚堟硶銆?</span><br><a href="" id="details0">闅愯棌</a><font color="#0000FF">&nbsp;&nbsp;&nbsp;&nbsp</font></DIV> </td> </tr> <tr><td colspan="2" align="left" valign="top"><DIV id="div20" class="StackStyleVisible" width="100%"><br>   鍦?System.IO.Path.NormalizePathFast(String path, Boolean fullCheck)<br>   鍦?System.IO.Path.NormalizePath(String path, Boolean fullCheck)<br>   鍦?System.IO.Path.GetFullPathInternal(String path)<br>   鍦?System.Reflection.AssemblyName.GetAssemblyName(String assemblyFile)<br>   鍦?Microsoft.VisualStudio.Design.VSTypeResolutionService.AddProjectDependencies(Project project)<br>   鍦?Microsoft.VisualStudio.Design.VSTypeResolutionService.AssemblyEntry.get_Assembly()<br>   鍦?Microsoft.VisualStudio.Design.VSTypeResolutionService.AssemblyEntry.Search(String fullName, String typeName, Boolean ignoreTypeCase, Assembly& assembly, String ”等，是怎么回事啊？哪位知道，先谢谢啦