Extended the lookahead distance for channel resyncing.

When resyncing channels, the code advances a byte at a time, versus 4 bytes, which
caused problems when the frame marker was skipped.

DaqFileIO.cxx

@@ -376,7 +376,7 @@ CDaqLowLevelIo::ResyncChannel(
 	int  startingOffset = ftell(m_pFile);
 
 	skip = 0;
-	while ( !feof(m_pFile) && tries++ < 30) {
+	while ( !feof(m_pFile) && tries++ < cMaxChannResyncLookahead) {
 		int	mostRecentGoodOfs;
 
 		mostRecentGoodOfs = ftell(m_pFile);
@@ -422,7 +422,8 @@ CDaqLowLevelIo::ResyncChannel(
 			fseek(m_pFile, 4, SEEK_CUR);
 		}
 		else {
-			// can't do much, next iteration of the loop will read the next integer
+			fseek(m_pFile, -3, SEEK_CUR);
+			skip++;
 		}
 	}
 
@@ -1623,7 +1624,7 @@ CDaqLowLevelIo::GetFullData(
 		frm2 = GetLastFrame(); 
 	}
 	else {
-		frm2 += GetLastFrame();
+		frm2 += GetFirstFrame();
 		int triesLeft = 32;
 		while ( m_Toc.find(frm2) == m_Toc.end() && triesLeft-- > 0 ) frm2--;
 	}

DaqIo.h

@@ -25,6 +25,7 @@ typedef vector<CDaqChannelInfo> TChanInfoVec;
 
 const int cMaxDaqRec   = 128*1024;   ///< maximum size of data per DAQ record
 const int cMaxChannels = 500;       ///< maximum number of channels we can handle
+const int cMaxChannResyncLookahead = 2*1024;
 
 ///////////////////////////////////////////////////////////////////////////////////
 ///